Research Article: 2-(4-Chloro­benzo­yl)-1-(diamino­methyl­ene)hydrazinium chloride monohydrate

Date Published: May 01, 2010

Publisher: International Union of Crystallography

Author(s): V. M. Chernyshev, A. V. Chernysheva, E. V. Tarasova, V. V. Ivanov, Z. A. Starikova.


In the cation of the title compound, C8H10ClN4O+·Cl−·H2O, the guanidinium group is planar (maximum deviation = 0.0001 Å) and nearly perpendicular to carboxamide group, making a dihedral angle of 87.0 (3)°. The N atoms of the guanidine fragment have a planar trigonal configuration and the N atom of the carboxamide group adopts a pyramidal configuration. In the crystal structure, inter­molecular N—H⋯O, N—H⋯Cl and O—H⋯Cl hydrogen bonds link the cations, anions and water mol­ecules into layers parallel to the bc plane.

Partial Text

For a related structure, see: Kolev & Petrova (2003 ▶). For amino­guanidine structures, see: Bharatam et al. (2004 ▶); Koskinen et al. (1997 ▶); Hammerl et al. (2005 ▶); Macháčková et al. (2007 ▶); Murugavel et al. (2009a ▶,b ▶). For the preparation of guanyl hydrazides, see: Grinstein & Chipen (1961 ▶). For the application of guanyl hydrazides in the synthesis of 3-substituted 5-amino-1,2,4-triazoles, see: Dolzhenko et al. (2009 ▶).




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